Latency of cough response as a measure of antitussive agents.
D000328:Adult; D000368:Aged; D000996:Antitussive Agents / Q000097:blood / Q000627:therapeutic use*; D002247:Carbon Isotopes; D002951:Citrates; D002986:Clinical Trials as Topic; D003061:Codeine / Q000008:administration & dosage / Q000097:blood / Q000627:therapeutic use*; D003371:Cough / Q000139:chemically induced* / Q000188:drug therapy*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010616:Phenanthrenes / Q000008:administration & dosage / Q000097:blood / Q000627:therapeutic use*; D010919:Placebos
D000996:Antitussive Agents; D002247:Carbon Isotopes; D002951:Citrates; D010616:Phenanthrenes; D010919:Placebos; D003061:Codeine